Containers (eg Seq) not iterable?

[jbonevich]

When I try the following code, I get a KeyError: 0

from rdflib import Graph, Namespace, Seq, Literal, BNode

graph = Graph()
ns = Namespace("http://example.org#")

b = BNode()
seq = Seq(graph, uri=b, seq=[Literal('Elt1'), Literal('Elt2'), Literal('Elt3')])

for item in seq:
    print(item)

Traceback (most recent call last):
File ".../rdfcollections.py", line 9, in
for item in seq:
File ".../python3.11/site-packages/rdflib/container.py", line 108, in getitem
raise KeyError(key)
KeyError: 0

Using rdflib version 7.1.4 and python 3.11.0

[jbonevich]

for item in seq.items() does work; but I would expect that to be identical to the base iterator behavior.